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After the breakup of AT&T and the Bell System, the document was maintained and published by Bell Communications Research (BELLCORE) in 1983, 1986, 1990, 1994, and 1997. The 1983 and 1986 versions were known as Notes on the BOC Intra-LATA Networks, while the 1990 and 1994 editions had the title BOC Notes on the LEC Networks.
A personal area network (PAN) is a computer network used for communication among computers and different information technological devices close to one person. Some examples of devices that are used in a PAN are personal computers, printers, fax machines, telephones, PDAs, scanners, and video game consoles.
this is the structure of network general, every telecommunications network conceptually consists of three parts, or planes (so-called because they can be thought of as being and often are, separate overlay networks): The data plane (also user plane, bearer plane, or forwarding plane) carries the network's users' traffic, the actual payload.
These interconnected networks enable global communication, allowing calls to be made to and from nearly any telephone worldwide. [1] Many of these networks are progressively transitioning to Internet Protocol to carry their telephony traffic. The technical operation of the PSTN adheres to the standards internationally promulgated by the ITU-T.
This Linksys WRT54GS, a combined router and Wi‑Fi access point, operates using the 802.11g standard in the 2.4 GHz ISM band using signalling rates up to 54 Mbit/s. IEEE 802.11 Wi-fi networks are the most widely used wireless networks in the world, connecting devices like laptops (left) to the internet through a wireless router (right).
Communication system An electronic communications system using electronic signals. A communications system or communication system is a collection of individual telecommunications networks systems, relay stations, tributary stations, and terminal equipment usually capable of interconnection and interoperation to form an integrated whole.
Network topology is the arrangement of the elements (links, nodes, etc.) of a communication network. [ 1 ] [ 2 ] Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, [ 3 ] industrial fieldbusses and computer networks .
The Telecommunications Management Network is a protocol model defined by ITU-T for managing open systems in a communications network. It is part of the ITU-T Recommendation series M.3000 and is based on the OSI management specifications in ITU-T Recommendation series X.700 .